So after much trial and Error, I figured out that there is an error in the documentation, which was causing my error.
on http://neos.readthedocs.io/en/stable/References/NeosTypoScriptReference.html#dimensionsmenu
the documentation states
Note
The DimensionMenu is an alias to DimensionsMenu, available for compatibility reasons only.
```
But it turns out using DimensionsMenu will cause your menu not to render. Perhaps I misunderstood what was meant by alias but this ambiguity cause some unnecessary headache for me.